Back to Observing Reports November 2, 2010 at Shot Rock NELM = 7.2 Seeing 3 to 4 out of 5 Transparency 4/5 Tonight, we have decided to take the opportunity to observe as the 3rd quarter weekend was raining and the upcoming new moon Saturday has rain in the forcast...so we heard "Take it or leave it"...we Took it. This is a mix of polar galaxies, flat galaxies, Shakhbazian Compact Galaxy groups, dwarf galaxies, a protoplanetary and a couple dim planetary nebula Equipment used: 22” f/4 reflector 20mm Pentax XW finder eyepiece 18, 12.5, 9 and 7mm Baader Genuine Orthoscopics 10 and 6mm Zeiss ZAO-II Orthoscopics TMB 1.8x ED barlow Lumicon O-III filter Orion Ultrablock filter
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UGC 10923 (17 19 27.8 +86 44 19 mag 14.3 size 1.2x0.7’) Interacting Galaxies 22” at 255 and 328x – Considerably faint “v” shaped even surface brightness glow with stellar cores. The V is pointed to the east and the sotuh arm is brighter than the north arm. A very faint star is just off the vertex at the west side. This is an interacting pair of galaxies. About 0.5’ across. MCG +14-8-25 is a very faint small even surface brightness round glow. It lies 0.8’ east of UGC 10923. |
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UGC 3536A (07 03 22.3 +86 33 28 mag 14.6p size 0.9’) and UGC 3528A (mag 15.5p size 0.8x0.6’) Galaxies 22” at 255, 328 and 383x – UGC 3536A is a considerably faint round glow with a stellar core and diffuse edges. 0.4’ across. UGC 3528A is a very faint 2:1 elongated even surface brightness glow. PA = 90 and 0.3’ long. They are separated by 1.6’ and NW and SE of each other. A pair of 10.7 and 12.0 mag stars lies about 1.8’ west. A faint 16.4 mag star lies between the two galaxies. |
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NGC 1544 (05 02 33.4 +86 13 17 mag 14.2p size 1.2x0.8’) Galaxy 22" at 255,
328 and 383x - Faint round glow wit ha stellar core. Pretty
defined edges. About 0.3' across with two 15th mag stars lying
just north. |
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UGC 3654 (07 17 46.8 +85 42 47 mag 15.0 size 1.3x0.7’) Galaxy 22” at 255, 328 and 383x – Appears as a double galaxy-star. Considerably bright small round glow with well-defined edges. Higher than normal surface brightness. 0.2’ across. An 11.5 mag star lies just 15” SW which greatly interferes with the observation. Nearby galaxy, UGC 3661, is a very faint 3:1 elongated glow. Even surface brightness. PA = 15 and 0.5’ long. |
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I Zw 1 – UGC 545 (00 53
35.1 +12 41 35 mag
14.4b size 0.5x0.4’)
Quasar 22" at 328
and 383x - Bright stellar core wit ha faint diffuse halo. Halo is
about 0.4' across. A 16th magnitude star lies just off the north
edge and a 17th mag star is just off the west edge. |
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UGC 2411 (02 58 47.6 +75 44 47 mag 16.2 size 4.1x0.2’) Flat Galaxy 22” at 328 and 383x – First detected at 383x as a very faint low surface brightness, very thin glow with diffuse edges. About 2.3’ long and PA = 15. The north end is just west of a mag 12.5 star and almost reaching the mag 13.5 star. The south end extends just past the mag 15.4 star. This was the third attempt to observe and it shows that very dark skies are needed. The two previous negative attempts were made at NELM 6.5 skies with a 22” scope. |
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UGC 12613 – Pegasus Dwarf (23 28 34.1 +14 44 48 mag 12.6v size 8.3x2.5’) Dwarf Galaxy 22” at 115, 184, 255, 328 and 383x – At 115x, it was immediately picked up as a direct vision low surface brightness irregular glow. About 3.5’ across and roughly 4:3 elongated box shaped. PA = 135. MAC 2328+1443 is a very faint, 3:1 elongated glow seen at 383x. MAC 2328+1443 is a very faint round glow seen at 383x as well. |
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IC 10 (00 20 18.2 +59 18 04 mag 11.8b size 6.3x5.1’) Dwarf Galaxy 22” at 115, 184 and 383x – Direct vision 3:2 elongated glow with many stars on the face. PA = 120. The OB association, A12, was faintly detected at 383x. Took some time with a good finder chart to find it. It lies right next to a mag ~16 star to the west. |
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WLM – MCG-3-1-15 (00 01 56.3 -15 27 21 mag 11.0b size 11.6x4.0’) Dwarf Galaxy 22” at 115, 128, 328 and 383x – Direct vision 4:1 elongated glow with very diffuse edges. PA= 0 and 7’ long. The globular GC1 was detected as a faint non-stellar glow that is just a bit fainter than the 15.2 mag star that lies 0.6’ north. |
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UGC 1856 (02 24 31.5 +31 36 54 mag 14.8p size 2.7x0.4’) Flat Galaxy 22” at 383,
460 and 591x – Very faint thin even surface brightness glow. Between two bright field stars at 10.3 and
10.6 magnitude. The two stars are 1.1’
apart. The tip is a closer to the west
star. PA = 120 and 0.8’ long. This
was my third attemp at observing this object, both failed attempts were
at NELM 6.5 skies. |
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Shakhbazian 21 (23 46 48 -01 45 00 mag 16+ size 2.6’) Compact Galaxy cluster with 12 members 22” at 383, 460 and 591x – Three galaxies detected. A – very faint, very small round even surface brightness glow. B – very faint small round glow with a stellar core. C – extremely faint very small round glow. |
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Shakhbazian 44 (01 40 53 +02 51 01 mag 16.5+ size 2.8’) Compact Galaxy Cluster with 9 members 22” at 328, 383, 460 and 591x – Four members detected. Starting from the south end. A – very faint round small glow. B – extremely faint, very small round glow. C – extremely faint round glow. D – very faint very small round glow. |
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Shakhbazian 262 (00 08 42 -11 58 18 mag 17.1 size 3.4’) Compact Galaxy Cluster with 13 members 22” at 328 and 383x – Very faint double galaxy, MAC 0008-1158 and -1159, positioned 0.2’ apart and PA = 135. Both are round and very small. Even surface brightness. |
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Shakhbazian 309 (00 51 21 -07 24 17 mag 17.49+ size 6.7’) Compact Galaxy Group with 14 members 22” at 383x – This observation is not quite positive as it is a very star poor region and at 383x, there were no stars in the field. I suspected some lumpy darkness in the area. |
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Shakhbazian 265 (00 57 11 -14 01 47 mag 17.41+ size 3’) Compact Galaxy Group with 11 members 22” at 383x
–
Just two galaxies detected. Both are
extremely faint round glows and are outliers, not really part of the
cluster. None of the cluster members were seen. I must try
this cluster again. |
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Holmberg VI (03 24 48.4 -21 20 11 mag 13.3b size 2.2x2.0’) Galaxy 22” at 184 and 255x – Very diffuse low surface brightness glow. Round with a slightly brighter round center. 1.1’ across. |
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(03 46 36.0 -04 27 10 mag 15.0 size 2.5x0.3’) Flat Galaxy 22” at 184, 255 and 328x – Considerably bright thin well-defined glow with a slightly brighter elongated center. PA = 30 and 2.5’ long. |
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IC 2098 (04 50 44.6 -05 25 08 mag 14.5 size 2.5x0.2’) Flat Galaxy 22” at 184, 255 and 328x – Faint thin glow with well-defined edges. No central brightness. PA = 105 and 1.9’ long. Best at 183x. |
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UGC 3474 (06 32 37.8 +71 33 39 mag 15.4p size 2.2x0.2’) Flat Galaxy 22” at 184, 255 and 328x – Very faint thin glow with a slightly brighter center. Even surface brightness. PA = 150 and 1.6’ across. A 11.9 mag star lies just 20” west of the center. A very faint star is just off the south tip. |
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UGC 3697 (07 11 21.4 +71 50 11 mag 13.5p size 3.3x0.5’) Flat Galaxy 22” at 184, 255 and 328x – Considerably bright thin glow with well-defined edges. Appears as a flat integral sign galaxy. The west tip curve a bit more than the east tip. A couple 15th magnitude stars lies on each side. PA = 75 and 2.7’ long. |
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UGC 4186 (08 04 14.0 +62 58 54 mag 15.7 size 1.3x0.2), UGC 4185 (mag 15.6 size 1.3x0.2’) and MCG +11-10-55 (mag 17.2 and 0.7x0.1’) Three Flat/Edge-on galaxies 22” at 184, 255, 328, 383 and 460x) - UGC 4186 – Considerably faint thin glow with a brighter center. PA = 135 and 0.9’ long. About 0.7’ west is UGC 4185 – Considerably faint thin even surface brightness glow. PA = 150 and 0.7’ long. UGC 4186 is slightly brighter. MCG +11-10-55 is an extremely faint thin glow. Seen at 460x only. PA = 105 and 0.4’ long. |
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UGC 4078 (08 04 29.3 +84 38 36 mag 15.1p size 2.0x0.4’) Flat Galaxy 22” at 328 and 383x - Considerably bright thin glow with a slightly brighter center. Defined edges. Between two bright mag 11.4 and 12.0 stars. One is 2.2’ almost due south, just west of south and the other is 2.4’ NE. PA = 90 and 0.9’ long. |
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CRL 618 – PK 166-6.1 - Westbrook Nebula (04 42 53.6 +36 06 53 size 12” and mag 17.9p) ProtoPlanetary Nebula 22” at 331,
460, 591 and 690x – Very faint very small 3:1 elongated glow with a
slight darkening alittle west of halfway. Even
surface
brightness. First
seen at 591x, better at 690x. 0.2’ long
and PA = 90. A
10.6
mag star lies 1.4’ NNE. Rich star field. Recommend very high powers and steady seeing to resolve this object. Seeing as floating from average to above average, so it was a little frustrating trying to resolve the two chunks
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Sharpless 2-216 (04 45 35.0 +46 48 30 mag - size 100’) Large Planetary Nebula 22” at 115, 128 and 255x - The field was found, but no nebula. Tried both O-III and Ultrablock filters. |
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Abell 13
(06 04 47.8 +03 56 36 mag 16.0b size
2.2’ mag* 19.8) Planetary
Nebula 22” at 128 and 184x – Extremely faint slightly curved arc. Initially seen at 128x then bumped it to 184x. Detected at least three times at 184x and passed the wiggle test. Confirmed the location relative to the two tars marked as A. This is only the brightest part seen. Used both the O-III and Ultrablock. Couldn’t say which is better. About 0.9’ long. This was my ninth attempt at this object. |
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